RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4700 locations in the last 30 days (4859 reports) · Last sighting 14 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

32080fewer → more

Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/11/20253922 W 85TH PLAshburn18Completed4 daysPhone CallCity 311
8/11/20254501 S FRANCISCO AVEBrighton Park12Completed14 daysInternetCity 311
8/11/20254024 N LINCOLN AVENorth Center47Completed10 daysInternetCity 311
8/11/20257355 W BARRY AVEDunning29Completed14 daysAlderman's OfficeCity 311
8/11/2025135 N HOYNE AVENear West Side27Completed9 daysPhone CallCity 311
8/11/20251627 N LOCKWOOD AVEAustin37Completed8 daysPhone CallCity 311
8/11/20256025 W WAVELAND AVEDunning38Completed9 daysAlderman's OfficeCity 311
8/11/20255101 S LAMON AVEGarfield Ridge23Completed11 daysPhone CallCity 311
8/11/202510841 S HAMLIN AVEMount Greenwood19Completed9 daysAlderman's OfficeCity 311
8/11/20252943 S LOWE AVEBridgeport11Completed3 daysAlderman's OfficeCity 311
8/11/202510845 S HAMLIN AVEMount Greenwood19Completed9 daysInternetCity 311
8/11/20251973 W 111TH STMorgan Park19Completed11 daysAlderman's OfficeCity 311
8/11/20259709 S COMMERCIAL AVESouth Deering10Completed3 daysPhone CallCity 311
8/11/2025846 W CORNELIA AVELake View44Completed11 daysMobile DeviceCity 311
8/11/20255152 S MERRIMAC AVEGarfield Ridge23Completed9 daysPhone CallCity 311
8/11/20256010 S ALBANY AVEChicago Lawn14Completed11 daysAlderman's OfficeCity 311
8/11/202510553 S ALBANY AVEMount Greenwood19Completed14 daysPhone CallCity 311
8/11/20256450 S NARRAGANSETT AVEClearing13Completed10 daysInternetCity 311
8/11/20253135 N NEWCASTLE AVEMontclare36Completed10 daysPhone CallCity 311
8/11/20251929 W CUYLER AVENorth Center47Completed10 daysAlderman's OfficeCity 311
8/11/20253937 W 64TH PLWest Lawn23Completed18 daysAlderman's OfficeCity 311
8/11/202510637 S SAWYER AVEMount Greenwood19Completed14 daysAlderman's OfficeCity 311
8/11/20253511 N NATCHEZ AVEDunning38Completed9 daysAlderman's OfficeCity 311
8/11/20255227 S NATCHEZ AVEGarfield Ridge23Completed14 daysAlderman's OfficeCity 311
8/11/20252112 W MADISON STNear West Side27Completed9 daysPhone CallCity 311
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